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A metal derusting and phosphating treatment agent and preparation method thereof

A phosphating and metal technology, applied in the direction of metal material coating process, etc., can solve the problems of single phosphating solution, low bonding strength, can not meet market needs, etc., and achieve good decontamination and film-forming effects.

Active Publication Date: 2016-09-28
NANTONG KEXING CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the existing phosphating solution is in use, the phosphating layer formed after treatment is uneven, the phosphating time is long, and the bonding strength after phosphating is small
At the same time, the phosphating solution has a single function and cannot meet the current growing market needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A metal derusting and phosphating agent, comprising: 80 parts by weight of phosphoric acid, 10 parts of zinc oxide, 0.5 part of magnesium oxide, 110 parts of zinc nitrate, 10 parts of zinc dihydrogen phosphate, 1 part of ammonium molybdate, 1 part of potassium phosphate, 10 parts of sodium dodecyl sulfonate, 0.5 parts of sodium chlorate, 1 part of sodium hexametaphosphate, 2 parts of sodium lauryl sulfate, 700 parts of distilled water.

[0016] The preparation method of above-mentioned metal derusting, phosphating treatment agent, carries out according to the following steps:

[0017] (1) Weigh each component according to parts by weight;

[0018] (2) Heat distilled water to 50°C, add zinc oxide, mix evenly, then slowly add phosphoric acid, continue to stir until zinc oxide is completely dissolved, then add ammonium molybdate, sodium dodecylsulfonate, sodium lauryl sulfate, fully Stir and mix evenly, continue to stir for 10 minutes, then add the rest of the ingredients...

Embodiment 2

[0020] A metal derusting and phosphating agent, comprising: 88 parts by weight of phosphoric acid, 15 parts of zinc oxide, 1 part of magnesium oxide, 115 parts of zinc nitrate, 14 parts of zinc dihydrogen phosphate, 2 parts of ammonium molybdate, 2 parts of potassium phosphate, 14 parts of sodium lauryl sulfonate, 0.8 parts of sodium chlorate, 2 parts of sodium hexametaphosphate, 3 parts of sodium lauryl sulfate, 760 parts of distilled water.

[0021] The preparation method of above-mentioned metal derusting, phosphating treatment agent, carries out according to the following steps:

[0022] (1) Weigh each component according to parts by weight;

[0023] (2) Heat distilled water to 55°C, add zinc oxide, mix well, then slowly add phosphoric acid, continue to stir until zinc oxide is completely dissolved, then add ammonium molybdate, sodium dodecylsulfonate, sodium lauryl sulfate, fully Stir and mix evenly, continue to stir for 12 minutes, then add the rest of the ingredients, ...

Embodiment 3

[0025] A metal derusting and phosphating agent, comprising: 92 parts by weight of phosphoric acid, 17 parts of zinc oxide, 1.2 parts of magnesium oxide, 118 parts of zinc nitrate, 15 parts of zinc dihydrogen phosphate, 3 parts of ammonium molybdate, 3 parts of potassium phosphate, 16 parts of sodium lauryl sulfonate, 1.2 parts of sodium chlorate, 3 parts of sodium hexametaphosphate, 4 parts of sodium lauryl sulfate, 770 parts of distilled water.

[0026] The preparation method of above-mentioned metal derusting, phosphating treatment agent, carries out according to the following steps:

[0027] (1) Weigh each component according to parts by weight;

[0028] (2) Heat distilled water to 58°C, add zinc oxide, mix well, then slowly add phosphoric acid, continue to stir until zinc oxide is completely dissolved, then add ammonium molybdate, sodium dodecylsulfonate, sodium lauryl sulfate, fully Stir and mix evenly, continue to stir for 15 minutes, then add the rest of the ingredient...

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PUM

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Abstract

The invention discloses a metal derusting and phosphating treatment agent and a preparation method thereof. The metal derusting and phosphating treatment agent comprises, by weight components: 80-100 parts of phosphoric acid, 10-20 parts of zinc oxide, and 0.5 parts of magnesium oxide. ‑2 parts, 110‑130 parts of zinc nitrate, 10‑20 parts of zinc dihydrogen phosphate, 1‑5 parts of ammonium molybdate, 1‑5 parts of potassium phosphate, 10‑20 parts of sodium dodecylsulfonate, sodium chlorate 0.5‑2 parts, 1‑5 parts of sodium hexametaphosphate, 2‑6 parts of sodium lauryl sulfate, 700‑800 parts of distilled water; the preparation method is to heat distilled water to 50‑60 ° C, add zinc oxide, mix well, and then slowly Add phosphoric acid, continue to stir until the zinc oxide is completely dissolved, then add ammonium molybdate, sodium lauryl sulfate, sodium lauryl sulfate, stir well and mix well, continue stirring for 10‑20 minutes, then add the rest of the components and stir well Can.

Description

technical field [0001] The invention belongs to the technical field of preparation of metal surface treatment agents, in particular to a metal rust removal and phosphating treatment agent and a preparation method thereof. Background technique [0002] Anti-rust and decoration of steel parts must be painted. For example, the outer shell of a car should be painted to increase the beauty. In order to increase the bonding strength between the paint film and the steel plate, phosphating treatment is used before the iron plate is painted. Make the board shell form a kind of honeycomb-like tissue, increase the bonding strength. However, when the existing phosphating solution is used, the phosphating layer formed after treatment is uneven, the phosphating time is long, and the bonding strength after phosphating is small. Simultaneously, the phosphating solution has a single effect, which cannot meet the current increasing market demand. Contents of the invention [0003] The ob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/42C23G1/02
Inventor 傅士超吴龙铁王凯华吴桂勤
Owner NANTONG KEXING CHEM